Sudoku Challenge 2021 winner is don3232!

Hello and happy new year!

In the end of last year, a sudoku tournament series was played.
It lasted for six weeks, five touraments every week so 30 tournaments in total.

For overall rankings, 20 best results were summed up. During the six weeks, there were 28 players who participated.

The winner of the Sudoku Challenge 2021 is don3232 from Chinese Taipei, who participated in 21 tournaments and the total solving time was 04:27:06.
The runner up was Hannes Sidorov from Estonia whose solving time was 07:43:22 and the third place went also to estonia to Georg-Romet Topkin whose solving time was 08:41:11.

Congratulations to winners and thanks everyone for participating!
For next year we might change the format a little bit as the current format might be too intensive. Maybe 3 tournaments per week and 10-week  tournament series works better. Any suggestions are welcome!